Katzmann, Robert A.
Judging statutes / Robert A. Katzmann
Oxford University Press, 2014
 Buku Teks SO
Lieb, Robert C.
Transportation / Robert C. Lieb
Reston Publ, 1985
 Buku Teks SO
Transportation policy
Elsevier scine publisher , 2018
 Majalah, Jurnal, Buletin
Haner, F. T.
Business policy, planning, and strategy /​ F. T. Haner.
Winthrop Publishers, 1976
 Buku Teks
Germane, Gayton E.
Transportation policy issues fo the 1980's
Addison-Wesley, 1983
 Buku Teks SO